Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/33182 |
Resumo: | In the northern sectors of the Central-Iberian Zone the transition of the Lower Ordovician over the underlying sequences always shows evidence of the Toledanian phase. The effects of this pre-Armorican Quartzites deformation are highly heterogeneous. In most of the cases it is only shown by an important erosive level giving rise to a disconformity, while in other situations it corresponds to a strong angular unconformity where the older sequences could even present a reversal polarity. Such geometrical relations, that are common in the Central-Iberian Zone, could not be explained by the rotation of the layers in the vicinity of normal faults related to an extensional regime. This suggests that the Toledanian phase was a transient inversion in the general extensive regime that predominates in the northern margin of Iberia during most of the Lower Paleozoic. |
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Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics ConstrainsToledanian phaseCentral-Iberian ZoneTransient inversionIn the northern sectors of the Central-Iberian Zone the transition of the Lower Ordovician over the underlying sequences always shows evidence of the Toledanian phase. The effects of this pre-Armorican Quartzites deformation are highly heterogeneous. In most of the cases it is only shown by an important erosive level giving rise to a disconformity, while in other situations it corresponds to a strong angular unconformity where the older sequences could even present a reversal polarity. Such geometrical relations, that are common in the Central-Iberian Zone, could not be explained by the rotation of the layers in the vicinity of normal faults related to an extensional regime. This suggests that the Toledanian phase was a transient inversion in the general extensive regime that predominates in the northern margin of Iberia during most of the Lower Paleozoic.Sociedad Geológica de España2023-01-04T17:23:37Z2023-01-042021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/33182http://hdl.handle.net/10174/33182porDias, R., Coke, C., Teixeira, R., Ribeiro, A., Amaral, F., Corfu, F. (2021). "Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains". X Congreso Geológico de Espanha, Vitória (Espanha). Geo-Temas 18, ISSN: 1576-5172 (versión impresa) 2792-2308 (versión digital), 47-49.rdias@uevora.ptccoke@sapo.ptrteixeir@utad.ptaribeiro@fc.ul.ptndnd395Dias, RuiCoke, CarlosTeixeira, RuiRibeiro, AntónioAmaral, FábioCorfu, Fernandoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:34:31Zoai:dspace.uevora.pt:10174/33182Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:21:58.791945Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
title |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
spellingShingle |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains Dias, Rui Toledanian phase Central-Iberian Zone Transient inversion |
title_short |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
title_full |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
title_fullStr |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
title_full_unstemmed |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
title_sort |
Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains |
author |
Dias, Rui |
author_facet |
Dias, Rui Coke, Carlos Teixeira, Rui Ribeiro, António Amaral, Fábio Corfu, Fernando |
author_role |
author |
author2 |
Coke, Carlos Teixeira, Rui Ribeiro, António Amaral, Fábio Corfu, Fernando |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Dias, Rui Coke, Carlos Teixeira, Rui Ribeiro, António Amaral, Fábio Corfu, Fernando |
dc.subject.por.fl_str_mv |
Toledanian phase Central-Iberian Zone Transient inversion |
topic |
Toledanian phase Central-Iberian Zone Transient inversion |
description |
In the northern sectors of the Central-Iberian Zone the transition of the Lower Ordovician over the underlying sequences always shows evidence of the Toledanian phase. The effects of this pre-Armorican Quartzites deformation are highly heterogeneous. In most of the cases it is only shown by an important erosive level giving rise to a disconformity, while in other situations it corresponds to a strong angular unconformity where the older sequences could even present a reversal polarity. Such geometrical relations, that are common in the Central-Iberian Zone, could not be explained by the rotation of the layers in the vicinity of normal faults related to an extensional regime. This suggests that the Toledanian phase was a transient inversion in the general extensive regime that predominates in the northern margin of Iberia during most of the Lower Paleozoic. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01T00:00:00Z 2023-01-04T17:23:37Z 2023-01-04 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/33182 http://hdl.handle.net/10174/33182 |
url |
http://hdl.handle.net/10174/33182 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Dias, R., Coke, C., Teixeira, R., Ribeiro, A., Amaral, F., Corfu, F. (2021). "Cambrian-Ordovician Transition in the Northern Domains of Central-Iberian Zone; Tectonics Constrains". X Congreso Geológico de Espanha, Vitória (Espanha). Geo-Temas 18, ISSN: 1576-5172 (versión impresa) 2792-2308 (versión digital), 47-49. rdias@uevora.pt ccoke@sapo.pt rteixeir@utad.pt aribeiro@fc.ul.pt nd nd 395 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Sociedad Geológica de España |
publisher.none.fl_str_mv |
Sociedad Geológica de España |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799136701541515264 |